choccarlm
asked on
Dns Servers
Hi,
Whats the best way to setup a pair of dns servers (1 Primary & 1 Secondary). I will require the secondary dns server to handle requests only if the primary dns server is overloaded or down.
Do I just set them both up the same, with identical named records, but set resolv.conf on the secondary server to have the primary dns server listed first, and then have itself listed second?
Cheers
Whats the best way to setup a pair of dns servers (1 Primary & 1 Secondary). I will require the secondary dns server to handle requests only if the primary dns server is overloaded or down.
Do I just set them both up the same, with identical named records, but set resolv.conf on the secondary server to have the primary dns server listed first, and then have itself listed second?
Cheers
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I don't know of a ready made tool for managing the secondaries named.conf, but then I've never loooked very hard for one. It wouldn't be very difficult to craft such a script since the config for the secondary is derived from the config for the master. You'd need to make sure that all zones defined on the master were in a standard format, of course.
If you want to send me a copy of your named.conf (to jim@entrophy-free.net) I'll take a crack at writing a perl script that would generate the secondary named.conf.
If you want to send me a copy of your named.conf (to jim@entrophy-free.net) I'll take a crack at writing a perl script that would generate the secondary named.conf.
choccarlm,
Not sure what your OS is, but if you happens to be running some kind of Unix variance, drop by http://www.webmin.com/ It has a nice Web based interface for sysadmin stuff, and yes, bind modules are also available..
Not sure what your OS is, but if you happens to be running some kind of Unix variance, drop by http://www.webmin.com/ It has a nice Web based interface for sysadmin stuff, and yes, bind modules are also available..
Hi,
Don't put the allow-transfer {}; statement on the slave. That should go on the master and have the slave server as the arguement. Another tip is to have only your slaves performing your query resolution. That way your master is safe behind a firewall and only allowed to send zone transfers to your slaves.
One redundant way to do it, is to have a master and two slaves. The master is on your private net with the two slaves out on your DMZ. Use a firewall to lock down the traffic to and from your master to allow only transfers to the slaves. Make the slaves non-recursive and do not allow transfers on the zone records.
EW
Don't put the allow-transfer {}; statement on the slave. That should go on the master and have the slave server as the arguement. Another tip is to have only your slaves performing your query resolution. That way your master is safe behind a firewall and only allowed to send zone transfers to your slaves.
One redundant way to do it, is to have a master and two slaves. The master is on your private net with the two slaves out on your DMZ. Use a firewall to lock down the traffic to and from your master to allow only transfers to the slaves. Make the slaves non-recursive and do not allow transfers on the zone records.
EW
EdUSC
Of cource you should have allow transfer on the slave, if for no other reason then to prevent people from doing zone-stealing.
Of cource you should have allow transfer on the slave, if for no other reason then to prevent people from doing zone-stealing.
True. I realized that after I sent the comment that there should be an allow-transfer {none;} in the slaves as well.
Oops. That's what I get for speaking w/o notes... :o)
Oops. That's what I get for speaking w/o notes... :o)
choccarlm:
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i'll go for the 1st comment by jim.
CC
ahoffmann: CC ?... Another Spanish word ?
> CC ?... Another Spanish word ?
LOL
s/CC/Cc:/ && s/Cc:/carbon copy/ && s/carbon copy/I'll second that/
not very spanish, isn't it?
;-)
LOL
s/CC/Cc:/ && s/Cc:/carbon copy/ && s/carbon copy/I'll second that/
not very spanish, isn't it?
;-)
ASKER
Is there a perl script of some sort that will do the job?
Cheers